--- /dev/null
+<?php
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface for classes that can return a description of itself.
+ *
+ * @since Interface available since Release 3.0.0
+ */
+interface PHPUnit_Framework_SelfDescribing
+{
+ /**
+ * Returns a string representation of the object.
+ *
+ * @return string
+ */
+ public function toString();
+}